Category:Category series navigation using unknown parameter

This maintenance category contains pages where {{Category series navigation}} or Module:Category series navigation uses an unknown parameter. This could be either:

To correct the problem, investigate the adjacent categories and the category hierarchy, then modify {{Category series navigation}} as appropriate, being aware that the intended parameter (or lack thereof) might be necessary on the errored category or a surrounding category.

Pages in this category should only be added by Template:Category series navigation and Module:Category series navigation.